Qualimap parsing script fails when num mismatches includes comma

[dfornika]

We aren't handling the case where the number of mismatches is over 1000 and includes a comma:

Command error:
  Traceback (most recent call last):
    File "qualimap_bamqc_genome_results_to_csv.py", line 125, in <module>
      main(args)
    File "qualimap_bamqc_genome_results_to_csv.py", line 53, in main
      output_data['number_of_mismatches'] = int(number_of_mismatches)
                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
  ValueError: invalid literal for int() with base 10: '8,588,232'

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